/// <summary>
/// 初始化
/// </summary>
/// <param name="e"></param>
override protected void OnInit(EventArgs e)
{
base.OnInit(e);
GeneralConfigInfo config = GeneralConfigs.GetConfig();
string bgcolor = DNTRequest.GetQueryString("bgcolor").Trim();
int textcolor = DNTRequest.GetQueryInt("textcolor", 1);
string[] bgcolorArray = bgcolor.Split(',');
Color bg = Color.White;
if (bgcolorArray.Length == 1 && bgcolor != string.Empty)
{
bg = Utils.ToColor(bgcolor);
}
else if (bgcolorArray.Length == 3 && Utils.IsNumericArray(bgcolorArray))
{
bg = Color.FromArgb(Utils.StrToInt(bgcolorArray[0], 255), Utils.StrToInt(bgcolorArray[1], 255), Utils.StrToInt(bgcolorArray[2], 255));
}
CookiesHelper.FailNoDomainCoolie("CheckCode");
OnlineUserInfo oui = OnlineUsers.UpdateInfo(config.Passwordkey, config.Onlinetimeout);
string checkCode = oui.Verifycode;
VerifyImageInfo verifyimg = VerifyImageProvider.GetInstance(config.VerifyImageAssemly).GenerateImage(checkCode, 120, 60, bg, textcolor);
//用于验证
CookiesHelper.AddNoDomainCoolie("CheckCode", checkCode, 1);
Bitmap image = verifyimg.Image;
System.Web.HttpContext.Current.Response.ContentType = verifyimg.ContentType;
image.Save(this.Response.OutputStream, verifyimg.ImageFormat);
}
public VerifyImageInfo GenerateImage(string code, int width, int height, Color bgcolor, int textcolor)
{
VerifyImageInfo verifyimage = new VerifyImageInfo();
verifyimage.ImageFormat = ImageFormat.Jpeg;
verifyimage.ContentType = "image/pjpeg";
// 直接指定尺寸, 而不使用外部参数中的建议尺寸
width = 120;
height = 40;
Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.HighSpeed;
g.Clear(bgcolor);
int fixedNumber = textcolor == 2 ? 60 : 0;
Pen linePen = new Pen(Color.FromArgb(Next(50) + fixedNumber, Next(50) + fixedNumber, Next(50) + fixedNumber), 1);
SolidBrush drawBrush = new SolidBrush(Color.FromArgb(Next(100), Next(100), Next(100)));
for (int i = 0; i < 3; i++)
{
g.DrawArc(linePen, Next(20) - 10, Next(20) - 10, Next(width) + 10, Next(height) + 10, Next(-100, 100), Next(-200, 200));
}
Graphics charg = Graphics.FromImage(charbmp);
float charx = -18;
for (int i = 0; i < code.Length; i++)
{
m.Reset();
m.RotateAt(Next(50) - 25, new PointF(Next(3) + 7, Next(3) + 7));
charg.Clear(Color.Transparent);
charg.Transform = m;
//定义前景色为黑色
drawBrush.Color = Color.Black;
charx = charx + 18 + Next(5);
PointF drawPoint = new PointF(charx, 2.0F);
charg.DrawString(code[i].ToString(), fonts[Next(fonts.Length - 1)], drawBrush, new PointF(0, 0));
charg.ResetTransform();
g.DrawImage(charbmp, drawPoint);
}
drawBrush.Dispose();
g.Dispose();
charg.Dispose();
verifyimage.Image = bitmap;
return(verifyimage);
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="e"></param>
override protected void OnInit(EventArgs e)
{
//
base.OnInit(e);
GeneralConfigInfo config = GeneralConfigs.GetConfig();
string bgcolor = DNTRequest.GetQueryString("bgcolor").Trim();
int textcolor = DNTRequest.GetQueryInt("textcolor", 1);
string[] bgcolorArray = bgcolor.Split(',');
Color bg = Color.White;
if (bgcolorArray.Length == 1 && bgcolor != string.Empty)
{
bg = Utils.ToColor(bgcolor);
}
else if (bgcolorArray.Length == 3 && Utils.IsNumericArray(bgcolorArray))
{
bg = Color.FromArgb(Utils.StrToInt(bgcolorArray[0], 255), Utils.StrToInt(bgcolorArray[1], 255), Utils.StrToInt(bgcolorArray[2], 255));
}
VerifyImageInfo verifyimg = VerifyImageProvider.GetInstance(config.VerifyImageAssemly).GenerateImage(OnlineUsers.UpdateInfo(config.Passwordkey, config.Onlinetimeout).Verifycode, 120, 60, bg, textcolor);
//IVerifyImage verifyimg = new IVerifyImage(OnlineUsers.UpdateInfo(config.Passwordkey, config.Onlinetimeout).Verifycode, 90, 50, bg, textcolor);
Bitmap image = verifyimg.Image;
System.Web.HttpContext.Current.Response.ContentType = verifyimg.ContentType;
//MemoryStream ms = new MemoryStream();
image.Save(this.Response.OutputStream, verifyimg.ImageFormat);
//System.Web.HttpContext.Current.Response.OutputStream.Write(ms.ToArray(), 0, (int)ms.Length);
}
public override VerifyImageInfo GenerateImage(string code, int width, int height, Color bgcolor, int textcolor)
{
Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
// 建立画布
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.Clear(bgcolor);
//int fixedNumber = textcolor == 2 ? 60 : 0;
int fixedNumber = (textcolor > 60) ? 60 : (textcolor < 0) ? 0 : textcolor;
// 绘制四条随机直线
SolidBrush drawBrush = new SolidBrush(Color.FromArgb(Next(100), Next(100), Next(100)));
for (int x = 0; x < 3; x++)
{
Pen linePen = new Pen(Color.FromArgb(Next(150) + fixedNumber, Next(150) + fixedNumber, Next(150) + fixedNumber), 1);
g.DrawLine(linePen, new PointF(0.0F + Next(20), 0.0F + Next(height)), new PointF(0.0F + Next(width), 0.0F + Next(height)));
}
// 采用二D手法绘制要验证码.
Matrix m = new Matrix();
for (int x = 0; x < code.Length; x++)
{
m.Reset();
m.RotateAt(Next(30) - 15, new PointF(Convert.ToInt64(width * (0.10 * x)), Convert.ToInt64(height * 0.5)));
g.Transform = m;
drawBrush.Color = Color.FromArgb(Next(150) + fixedNumber + 20, Next(150) + fixedNumber + 20, Next(150) + fixedNumber + 20);
PointF drawPoint = new PointF(0.0F + Next(4) + x * 20, 3.0F + Next(3));
g.DrawString(Next(1) == 1 ? code[x].ToString() : code[x].ToString().ToUpper(), fonts[Next(fonts.Length - 1)], drawBrush, drawPoint);
g.ResetTransform();
}
// 将图中的每一个点进行扭曲化处理, 以实现弯曲效果.
if (this.isDistoryed)
{
this.distortImage(bitmap);
}
drawBrush.Dispose();
g.Dispose();
// 返回对象
VerifyImageInfo verifyimage = new VerifyImageInfo();
verifyimage.VerifyCode = code;
verifyimage.ImageFormat = ImageFormat.Jpeg;
verifyimage.ContentType = "image/pjpeg";
verifyimage.Image = bitmap;
return(verifyimage);
}
public VerifyImageInfo GenerateImage(string code, int width, int height, Color bgcolor, int textcolor)
{
var verifyImageInfo = new VerifyImageInfo();
verifyImageInfo.ImageFormat = ImageFormat.Jpeg;
verifyImageInfo.ContentType = "image/pjpeg";
width = 120;
height = 40;
var image = new Bitmap(width, height, PixelFormat.Format32bppArgb);
var g = Graphics.FromImage(image);
g.SmoothingMode = SmoothingMode.HighSpeed;
g.Clear(bgcolor);
int num = (textcolor == 2) ? 60 : 0;
Pen pen = new Pen(Color.FromArgb(Next(50) + num, Next(50) + num, Next(50) + num), 1f);
var solidBrush = new SolidBrush(Color.FromArgb(Next(100), Next(100), Next(100)));
for (int i = 0; i < 3; i++)
{
g.DrawArc(pen, Next(20) - 10, Next(20) - 10, Next(width) + 10, Next(height) + 10, Next(-100, 100), Next(-200, 200));
}
var charbmp = new Bitmap(40, 40);
var g2 = Graphics.FromImage(charbmp);
var num2 = -18f;
for (int j = 0; j < code.Length; j++)
{
m.Reset();
m.RotateAt((float)(Next(50) - 25), new PointF((float)(Next(3) + 7), (float)(Next(3) + 7)));
g2.Clear(Color.Transparent);
g2.Transform = m;
solidBrush.Color = Color.Black;
num2 = num2 + 18f + (float)Next(5);
PointF point = new PointF(num2, 2f);
g2.DrawString(code[j].ToString(), fonts[Next(fonts.Length - 1)], solidBrush, new PointF(0f, 0f));
g2.ResetTransform();
g.DrawImage(charbmp, point);
}
solidBrush.Dispose();
g.Dispose();
g2.Dispose();
verifyImageInfo.Image = image;
return(verifyImageInfo);
}
